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Metal Weed, Joy Weed, Alternanthera

Metal Weed, Joy Weed, Alternanthera
Photo: Colin Wilson
Invasive Plant
Metal Weed, Joy Weed, Alternanthera
Alternanthera dentata 'Rubra'
 

A frost tender plant grown for its dark reddish-purple foliage. Often planted as a low hedge or border. Its rich colour only fully develops in open, sunny positions. Often clipped or pruned to maintain its compact shape. It produces small flowers that are fairly insignificant - it is the foliage coloration that is its main attraction.

 

HOW IT SPREADS

  • Alternantheras grow readily from cuttings so it is essential that prunings are disposed of thoughtfully. Stem sections thrown over the fence will form roots in no time!
 
 
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Alternative Plants

Coastal Morning Glory, Goat's Foot Convolvulus
Photo: Colin Wilson
Alternative Plant Coastal Morning Glory, Goat's Foot Convolvulus
Ipomoea pes-caprae
Climbing and Ground Cover Plants
 

A popular native creeping vine of the tropics that is one of the most common and most widely distributed of all salt tolerant plants. Its sprawling runners spread out from a woody rootstock and have sparse, heart-shaped to rounded leaves. Flowers are purple, 2–5 cm long and freely produced. It is hardy and thrives in harsh environments. A good local alternative.

Creeping Vitex
Photo: Tim West
Alternative Plant Creeping Vitex
Vitex rotundifolia
Climbing and Ground Cover Plants
 

A sprawling native prostrate shrub that will cover some 2 m or more in area under coastal/ harsh conditions. It may spread to a diameter of 4 m or so in a protected, well watered area. It has round, grey-green to silvery foliage, which also has a quite noticeable spicy fragrance. Its 2–3 cm orchid-like flowers are a rich blue-purple and produced in clusters at the tips of branches throughout the year and adapts well to garden planting.

Dryander's Grevillea
Photo: Colin Wilson
Alternative Plant Dryander's Grevillea
Grevillea dryandri
Trees and Shrubs
 

Spreading low woody shrub that flowers from January to May, producing numerous long, brush-like red terminal flowers. Its foliage, like that of many grevilleas, is almost fern-like. As well as the more common red or pink forms, a white flowering variety is also available. This shrub will attract nectar and insectivorous birds, butterflies and nectar feeding small reptiles (lizards) into the garden.

 
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